-al a-a aaa aae aaf aak aal aan aea aee aef aek ael aen af- afa afe aff afk afl afn aka ake akk akl akn al- ala ale alf alk all aln an- ana ane anf ank anl ann eaa eae eaf eak eal ean eea eee eef eek eel een ef- efa efe eff efl eka eke ekf ekl ela ele elf elk ell eln en- ena ene enf enk enl enn faa fae faf fak fal fan fea fee fef fek fel fen ffa ffe fff ffk ffl ffn fka fkf fkk fkl fla fle flf fll fln fna fne fnf fnk fnl fnn ka- kaa kae kaf kak kal kan ke- kea kee kef kek kel ken kfa kff kke kkk kkl kkn kl- kla klf kn- kna kne knf knk knl knn la- laa lae laf lak lal lan lea lee lef lek lel len lfa lfe lff lfk lfl lfn lka lkl lla lle llf llk lll lln lna lne lnk lnl lnn naa nae naf nak nal nan ne- nea nee nef nek nel nen nfa nfe nff nfk nfl nfn nka nke nkf nkk nkn nla nle nlf nlk nll nln nna nne nnf nnk nnl nnn